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US 11,991,836 B2Granted
Electrical devices with electrodes on softening polymers and methods of manufacturing thereof
AssigneeBoard of Regents, The University of Texas System
InventorsRomil Modi, Jonathan Reeder, Gregory T. Ellson, Walter E. Voit, Alexandra Joshi Imre
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Abstract
An electrical device, comprising a softening polymer layer, an electrode layer on a surface of the softening polymer layer and a cover polymer layer on the surface of the softening polymer layer. An opening in the polymer cover layer is filled with a reflowed solder, one end of the reflowed solder, located inside the opening, contacts a contact pad site portion of the electrode layer, and another end of the reflowed solder contacts an electrical connector electrode of the device.
Claims16
An electrical device, comprising:
- a softening polymer layer;
- an electrode layer on a surface of the softening polymer layer;
- and
- a cover polymer layer on the surface of the softening polymer layer, wherein:
- an opening in the polymer cover layer is filled with a reflowed solder,
- one end of the reflowed solder, located inside the opening, contacts a contact pad site portion of the electrode layer,
- another end of the reflowed solder contacts an electrical connector electrode of the device;
- and
- the cover polymer layer is composed of a second softening polymer on the surface of the softening polymer layer, wherein an opening in the second softening polymer cover layer exposes a portion of a surface of the electrode layer, and wherein the softening polymer layer and the cover layer of the second softening polymer are composed of a softening polymer having a Young's modulus that decreases by more than 1 order of magnitude within a 30° C. temperature increase.
6 more elements
Dependencies are inferred from the claim text.